Oil pukieieb



April `8 1924.` 1,489,278

, O. RICHTER ET AL OIL PURIFIER Filed April l1. 1922 Patented Apr. 8, 1924.

U NIT ED STATES OSCAR RICHTER AND JACOB L. DEUTSCH, OF MILWAUKEE, WISCONSIN.'

OIL PURIFIER.

Applicatonf'lcdApll 11, 1922. Serial No. 551,736.

ing oil to be purified, an electrical heating-` unity in the bottom ofthe tank, means for conveying` oil" in small quantities to the heating unit, a pair of tubular membersA spaced With respect to. each other, the inner one conduct-ing the heated oil upwardly and directing it against abaiie, which sprays it on a heating apron, the oil being subjected to a high temperature and evaporated.

An object of the invention is tofprovide'a device of the character described, which is especially designed for the purpose of cleansing oils. Lubricating oils used in machinery such as internal combustion engines, and the like, soon become filled with carbon, particles of metal, kerosene and gasoline, to such an extent that they are of' little value as a lubricant and, therefore, must be re moved from `the machinery and new oil supplied instead. By removing the foreign matter the material may be reclaimed, producing a high grade lubricant.

It is an object of the invention to treat the oil in a rapid, economical, and thorough` manner. The liquid is admitted to the heater in small quantities and the heated' substance is consequently raised to a high temperature inV but a short interval of timer and rises 1n a conducting tube, striking short period of time, the undesirable vapors beingv completely and effectively removed. i

The baiiie is adjustable and operates to dispense the oil in radial lines on the heated apron. Strainersv are provided to keep heavy dirt oft'1 the heaters, preventing tendency to burn out and short circuit so that the device is durable and lasts for a long time. to. removing the volatile substances, serves, also, to agitate the liquid so that subsequently the carbonis precipitated readily.

Withtheabove and other objects in view, Which will appear as theV description proceeds, our invention resides in the novel construction, combinationand arrangement of parts, substantially as hereinafter described and more. particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come Within the scope of thevclaims.

In the accompanying drawing, We have illustrated onev complete example of' the physical embodiment of the present invention constructed according to the best mode We have so far devised for the practicalv application of the principles thereof, and in Which:

Figure 1l is a central sectional view ofV the percolating unit as applied. to a container.

Figures 2 and 3 are cross sections thereof on the line' indicatedA in Figure 1` 'Container 10 isintegral With a depending sleeve 11 having a bottom 12 supporting` an electric heater 13. The percolator comprises a shell lrigd With an inner tubel and an outer shell lvrigid with an outer tube 17,. Tubes 18 are directed through shells 14 and 16 and support removable strainers 19 of cylindrical form slidable into position on the tubes. A depending flange 2O rigid with thev shells is in close contactual relationshipwith sleeve 11 and cooperating with the sleeve is an` annular rib 21 to support the percolator in position. The percolator may be readily removed by the upward movement of flange 20 with respect to sleeve 1l.

Outer tube 17 terminates in plate 22 which is integral with an apron 23 provided with a series of annular, concentric Vcorrugated deformations 211. The baiie consists of a plate 25 rigid with a top 26 and carrying a cone 27 positioned centrally of a pair of re- The percolating action, in addition silient arms 28 adapted to be received in tube 15. The oil from the crank case, being admitted to heater 13 in small quantities, is rapidly raised to a relatively high temperature and rises rapidly in inner tube 15. lThe fact that the outer tube 17 and shell 16 are spaced from the corresponding inner parts, facilitates the elevation of the liquid to a high temperature.

If the oil in container 10 were immediately in contact With inner tube 15, the fluid would be rapidly cooled. The percolating action drives the oil upwardly against cone 27, which deiiects it radially and cooperates with plate 25 to dispense the oil, which is substantially at a temperature between 225 and 25.0 F. against apron23. The corrugated deformations 24 operate to retard the lradial travel of the substance so that it is exposed for an appreciable interval of time. The fact thatthe liquid is then broken up into small drops gives it a great superficial area so that the gasoline and kerosene vapors, which are especially volatile, are rapidly and completely removed. The oil then finds its Way'into the rest of the fluid and the entire contents of the container 10 are subjected to agitation as a result of the outfioiv through tubes 18 and the deposit of the heated liquid from above. rlhe level of the oil in container 10 is substantially as indicated in Figure 1.

The invention is not limited to the exact means illustrated, whereby inner tube 15 is spaced from the oil in container 10, but this tube may be directed outwardly through the Walls of the container and spaced laterally from the inner container 10. It is important, however, that the oil .in the container should not be brought directly in contact ivith the tube 15, as this Would result in immediate cooling of the fluid.

Apron 23 is provided with a stop-cock 29 Which may be manipulated to relieve excessive air pressure distributed by the eXpansion of the air as the result of the heating of the oil. The increased air pressure might result in the disruption of one of the ivalls. 1f desired, a number of percolators may be used in one container in order to make the operation more rapid or to treat a. greater quantity of oil. After the evaporating process has been completed, soap powder may be used to assist in settling the carbon, a tendency of Which to precipitate has been produced by the agitating of lthe oil.

The lunascere bricating oil may then be reclaimed in the usual manner by drawing olii.

lWe claim z'w 1. In a device of the class described, the combination of a container for oil, an electric heater, means for conveying oil in small quantities to said heater, an inner tube, means supporting said inner tube over said heater, an outer tube spaced from said inner tube for preventing oil from coming in contact With the outer side of said inner tube, a baiile over said inner tube in the path of travel of oil from said inner tube, and an apron against which the oil is directed by said baffle.v

2. ln a device oi the class described, the combination of a container for oil, an electric heater, means for conducting oil to said heater, an inner tube, means supporting said inner tube over said heater, an outer tube enveloping said inner tube and prevent-ing oil from coming into contact with the outer side of said inner tube, an apron, deformations on said apron, and a batlie over said o inn-er tube in the path of travel of oil from said inner tube directing the heated o/il against said apron. y

3. 1n a device of the class described, the combination of a container for oil, an electric heater, means for conducting oil to said heater, an inner tube, means supporting said inner tube over said heater, an outer tube enveloping said inner tube and preventing oil from coming into Contact with the outer side of said inner tube, an apron, deformations on said apron, and a baffle directing the heated oil against said apron, said bafile being adjustable to vary the dispersion of the oil.

a. ln a device of the class described, the combination of a container, a heater carried by the bottom of said container, an inner shell resting on said bottom and covering said heater, an inner tube supported by said inner shell and upwardly extending therefrom, an outer shell secured at its edge to the edge of said inner shell, and an outer tube enveloping said inner tube and upwardly extending 'from said outer shell.

In testimony that We claim the foregoing ive have hereunto set our hands at Milwaukee, in the county of Milwaukee and State of Wisconsin.

OSCAR RICHTER. JACOB L. DEUTSCH. 

